To observe the galaxy in the 1420 MHz frequency and map the galaxy with respect to velocities, ultimately plot the rotation curve for our Milky Way Galaxy.
To build a Horn Antenna from scratch and assemble the electronic components to build a H21 cm line Radio Telescope.
The 21 cm line is a spectral line of neutral hydrogen, which is the most abundant element in the universe. The 21 cm line is a hyperfine structure line of neutral hydrogen.
It is a very important line in radio astronomy because it is the only line that can be detected in the interstellar medium. The 21 cm line is used to study the distribution of neutral hydrogen in the galaxy and can be used to study the rotation curve of the galaxy.